CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 75,101 Value ($000) $18 Avg Close $228.49 Range $201.34 - $248.07

Q3 2025

Shares 77,254 Value ($000) $18 Avg Close $236.75 Range $218.46 - $251.43

Q2 2025

Shares 187,537 Value ($000) $43 Avg Close $218.92 Range $178.29 - $235.43

Q1 2025

Shares 273,255 Value ($000) $54 Avg Close $218.84 Range $186.54 - $247.51

Q4 2024

Shares 286,278 Value ($000) $66 Avg Close $248.40 Range $220.10 - $267.11

Q3 2024

Shares 382,199 Value ($000) $92 Avg Close $235.10 Range $217.36 - $251.65

Q2 2024

Shares 407,118 Value ($000) $92 Avg Close $209.64 Range $189.32 - $231.15

Q1 2024

Shares 421,591 Value ($000) $85 Avg Close $179.73 Range $161.39 - $202.58

Q4 2023

Shares 464,806 Value ($000) $81 Avg Close $164.14 Range $132.92 - $179.49

Q3 2023

Shares 508,530 Value ($000) $85 Avg Close $168.59 Range $160.37 - $178.33

Q2 2023

Shares 580,822 Value ($000) $96 Avg Close $146.18 Range $129.70 - $164.80

Q1 2023

Shares 656,973 Value ($000) $94 Avg Close $130.22 Range $110.96 - $144.20

Q4 2022

Shares 616,311 Value ($000) $70 Avg Close $116.83 Range $109.07 - $125.41

Q3 2022

Shares 463,901 Value ($000) $51,020 Avg Close $107.08 Range $83.56 - $124.49

Q2 2022

Shares 418,761 Value ($000) $36,713 Avg Close $96.49 Range $81.56 - $115.00

Q1 2022

Shares 318,228 Value ($000) $35,527 Avg Close $98.73 Range $87.11 - $113.71

Q4 2021

Shares 22,683 Value ($000) $2,263 Avg Close $105.37 Range $90.25 - $118.89

Q3 2021

Shares 23,514 Value ($000) $2,442 Avg Close $98.39 Range $89.03 - $106.90

Q2 2021

Shares 26,609 Value ($000) $2,478 Avg Close $90.87 Range $83.56 - $96.47

Q1 2021

Shares 29,988 Value ($000) $2,521 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 26,146 Value ($000) $1,990 Avg Close $67.02 Range $52.22 - $77.16

Q3 2020

Shares 26,635 Value ($000) $1,492 Avg Close $59.23 Range $52.29 - $67.07

Q2 2020

Shares 27,893 Value ($000) $1,673 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 31,048 Value ($000) $1,594 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 27,604 Value ($000) $2,367 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 29,643 Value ($000) $2,288 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 29,473 Value ($000) $2,096 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 29,453 Value ($000) $2,107 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 30,569 Value ($000) $1,509 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 26,786 Value ($000) $1,917 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 26,628 Value ($000) $1,479 Avg Close $51.36 Range $44.75 - $56.00

Q1 2018

Shares 2,012,659 Value ($000) $98,238 Avg Close $52.41 Range $46.62 - $57.97

Q4 2017

Shares 2,092,421 Value ($000) $113,409 Avg Close $54.14 Range $51.43 - $58.22

Q3 2017

Shares 2,160,152 Value ($000) $122,481 Avg Close $54.44 Range $49.63 - $58.28

Q2 2017

Shares 2,137,654 Value ($000) $119,345 Avg Close $57.50 Range $53.17 - $61.62

Q1 2017

Shares 2,180,857 Value ($000) $121,299 Avg Close $55.34 Range $52.77 - $59.17

Q4 2016

Shares 2,177,384 Value ($000) $121,171 Avg Close $50.41 Range $43.03 - $58.23

Q3 2016

Shares 2,060,360 Value ($000) $98,856 Avg Close $49.57 Range $44.91 - $53.79

Q2 2016

Shares 2,079,150 Value ($000) $108,345 Avg Close $50.01 Range $46.40 - $54.54

Q1 2016

Shares 2,146,342 Value ($000) $105,901 Avg Close $43.78 Range $37.09 - $49.97

Q4 2015

Shares 330,077 Value ($000) $13,748 Avg Close $43.45 Range $39.89 - $48.05

Q3 2015

Shares 315,460 Value ($000) $13,871 Avg Close $49.63 Range $43.00 - $54.31

Q2 2015

Shares 395,260 Value ($000) $21,241 Avg Close $55.82 Range $50.65 - $59.29

Q1 2015

Shares 339,930 Value ($000) $19,301 Avg Close $51.78 Range $44.70 - $58.44

Q4 2014

Shares 309,800 Value ($000) $14,886 Avg Close $48.74 Range $43.05 - $53.84

Q3 2014

Shares 1,380,360 Value ($000) $74,429 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 442,280 Value ($000) $28,416 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 127,980 Value ($000) $7,012 Avg Close $54.49 Range $44.95 - $60.47

Q4 2013

Shares 209,780 Value ($000) $12,578 Avg Close $57.66 Range $51.77 - $64.12

Q3 2013

Shares 2,416,300 Value ($000) $141,740 Avg Close $55.80 Range $50.23 - $59.80

Q2 2013

Shares 4,584,406 Value ($000) $231,650 Avg Close $55.73 Range $50.37 - $61.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	75,101	$18	$228.49	$201.34 - $248.07
Q3 2025	77,254	$18	$236.75	$218.46 - $251.43
Q2 2025	187,537	$43	$218.92	$178.29 - $235.43
Q1 2025	273,255	$54	$218.84	$186.54 - $247.51
Q4 2024	286,278	$66	$248.40	$220.10 - $267.11
Q3 2024	382,199	$92	$235.10	$217.36 - $251.65
Q2 2024	407,118	$92	$209.64	$189.32 - $231.15
Q1 2024	421,591	$85	$179.73	$161.39 - $202.58
Q4 2023	464,806	$81	$164.14	$132.92 - $179.49
Q3 2023	508,530	$85	$168.59	$160.37 - $178.33
Q2 2023	580,822	$96	$146.18	$129.70 - $164.80
Q1 2023	656,973	$94	$130.22	$110.96 - $144.20
Q4 2022	616,311	$70	$116.83	$109.07 - $125.41
Q3 2022	463,901	$51,020	$107.08	$83.56 - $124.49
Q2 2022	418,761	$36,713	$96.49	$81.56 - $115.00
Q1 2022	318,228	$35,527	$98.73	$87.11 - $113.71
Q4 2021	22,683	$2,263	$105.37	$90.25 - $118.89
Q3 2021	23,514	$2,442	$98.39	$89.03 - $106.90
Q2 2021	26,609	$2,478	$90.87	$83.56 - $96.47
Q1 2021	29,988	$2,521	$84.13	$73.69 - $91.94
Q4 2020	26,146	$1,990	$67.02	$52.22 - $77.16
Q3 2020	26,635	$1,492	$59.23	$52.29 - $67.07
Q2 2020	27,893	$1,673	$55.73	$44.36 - $71.22
Q1 2020	31,048	$1,594	$73.03	$29.45 - $88.40
Q4 2019	27,604	$2,367	$81.27	$71.31 - $88.01
Q3 2019	29,643	$2,288	$73.96	$67.83 - $80.06
Q2 2019	29,473	$2,096	$69.62	$62.54 - $77.24
Q1 2019	29,453	$2,107	$61.79	$48.13 - $72.26
Q4 2018	30,569	$1,509	$62.29	$46.21 - $72.46
Q3 2018	26,786	$1,917	$63.60	$54.90 - $72.50
Q2 2018	26,628	$1,479	$51.36	$44.75 - $56.00
Q1 2018	2,012,659	$98,238	$52.41	$46.62 - $57.97
Q4 2017	2,092,421	$113,409	$54.14	$51.43 - $58.22
Q3 2017	2,160,152	$122,481	$54.44	$49.63 - $58.28
Q2 2017	2,137,654	$119,345	$57.50	$53.17 - $61.62
Q1 2017	2,180,857	$121,299	$55.34	$52.77 - $59.17
Q4 2016	2,177,384	$121,171	$50.41	$43.03 - $58.23
Q3 2016	2,060,360	$98,856	$49.57	$44.91 - $53.79
Q2 2016	2,079,150	$108,345	$50.01	$46.40 - $54.54
Q1 2016	2,146,342	$105,901	$43.78	$37.09 - $49.97
Q4 2015	330,077	$13,748	$43.45	$39.89 - $48.05
Q3 2015	315,460	$13,871	$49.63	$43.00 - $54.31
Q2 2015	395,260	$21,241	$55.82	$50.65 - $59.29
Q1 2015	339,930	$19,301	$51.78	$44.70 - $58.44
Q4 2014	309,800	$14,886	$48.74	$43.05 - $53.84
Q3 2014	1,380,360	$74,429	$58.81	$53.66 - $65.53
Q2 2014	442,280	$28,416	$59.46	$52.02 - $64.30
Q1 2014	127,980	$7,012	$54.49	$44.95 - $60.47
Q4 2013	209,780	$12,578	$57.66	$51.77 - $64.12
Q3 2013	2,416,300	$141,740	$55.80	$50.23 - $59.80
Q2 2013	4,584,406	$231,650	$55.73	$50.37 - $61.28